Sim cards not being activated

My Cell Number is ***. I did a sim swop last week, yesterday I told by Vodacom consultant to buy a new sim card, I got new sim card this morning, called customer care to do a sim swop, I was told to wait 3hrs. after 4hrs the sim card is still not working. I called customer care again, I was told to buy a sim card. What POOR SERVICE FROM VODACOM